package org.prs.web.servlet;

import com.prs.util.PrsException;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import org.prs.model.RelationshipType;
import org.prs.persistence.RelationshipTypeDatabasePersitence;

public class RelationshipTypeServlet extends HttpServlet {

    private final String CALL_GET_ALL_RELATIONSHIPS = "getallrelationshiptypes";
    private RelationshipTypeDatabasePersitence persistRelationshipType = new RelationshipTypeDatabasePersitence();

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        String call = request.getPathInfo().substring(1);
        try {
            JSONObject result = null;
            if (call.equals(CALL_GET_ALL_RELATIONSHIPS)) {
                JSONArray relationshipTypes = new JSONArray();
                JSONObject relationshipType = new JSONObject();
                for (RelationshipType relType : persistRelationshipType.getAllRelationshipTypes()) {
                    relationshipType = new JSONObject();
                    relationshipType.put("id", relType.getRelationshipTypeId());
                    relationshipType.put("name", relType.getName());
                    relationshipTypes.add(relationshipType);
                }
                result = new JSONObject();
                result.put("relationshiptypes", relationshipTypes);
            }
            if (result != null) {
                response.setHeader("cache-control", "no-cache");
                response.setCharacterEncoding("utf-8");
                response.setContentType("application/json");
                result.write(out);
                out.close();
            }
        } catch (Exception e) {
            throw new PrsException(e);
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);


    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);


    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";

    }// </editor-fold>
}
